int ledPins[] = {3, 4, 5, 7, 8, 9, 10, 11, 12, 13};
int ledCount = 10;
int buzzerPin = 6;
int melodyEpic[] = {147, 175, 196, 220, 247, 294, 330, 392, 440, 523};

void setup() {
  for (int i = 0; i < ledCount; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  ledakNaik();
  delay(400);
  gelombangMenyapu();
  delay(400);
  pulseCepat();
  delay(400);
  pinballMode();
  delay(600);
}

void ledakNaik() {
  for (int i = 0; i < ledCount / 2; i++) {
    nyalakanLED(i);
    nyalakanLED(ledCount - 1 - i);
    tone(buzzerPin, melodyEpic[i] + (i * 30));
    delay(100);
    noTone(buzzerPin);
    delay(20);
  }
  matikanSemuaLED();
}

void gelombangMenyapu() {
  int durasi = 80;
  for (int i = 0; i < ledCount; i++) {
    matikanSemuaLED();
    nyalakanLED(i);
    if (i > 0) nyalakanLED(i - 1);
    tone(buzzerPin, 440 - (i * 20));
    delay(durasi);
    noTone(buzzerPin);
  }
  for (int i = ledCount - 1; i >= 0; i--) {
    matikanSemuaLED();
    nyalakanLED(i);
    if (i < ledCount - 1) nyalakanLED(i + 1);
    tone(buzzerPin, 220 + (i * 15));
    delay(durasi);
    noTone(buzzerPin);
  }
}

void pulseCepat() {
  for (int j = 0; j < 5; j++) {
    nyalakanSemuaLED();
    if (j % 2 == 0) tone(buzzerPin, 600);
    else tone(buzzerPin, 400);
    delay(100);
    matikanSemuaLED();
    noTone(buzzerPin);
    delay(100);
  }
}

void pinballMode() {
  for (int i = 0; i < 15; i++) {
    int randomLed = random(0, ledCount);
    matikanSemuaLED();
    nyalakanLED(randomLed);
    int freq = 300 + (randomLed * 40);
    tone(buzzerPin, freq);
    delay(80);
    noTone(buzzerPin);
    delay(40);
  }
  matikanSemuaLED();
}

void nyalakanLED(int index) {
  if (index >= 0 && index < ledCount) digitalWrite(ledPins[index], HIGH);
}

void matikanSemuaLED() {
  for (int i = 0; i < ledCount; i++) digitalWrite(ledPins[i], LOW);
}

void nyalakanSemuaLED() {
  for (int i = 0; i < ledCount; i++) digitalWrite(ledPins[i], HIGH);
}